Phase 3 Study of HBS-301 Tablets for Treating Narcolepsy Symptoms Including Excessive Daytime Sleepiness and Cataplexy in Adults

What this Trial Is About

Researchers are conducting a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of HBS-301 in adults aged 18 years and older with narcolepsy. The study focuses on treating excessive daytime sleepiness EDS, cataplexy, sleepinesswakefulness, and fatigue in participants diagnosed with narcolepsy. Approximately 258 participants will be included in this trial. Participants will be randomly assigned to receive either HBS-301 tablets or matching placebo tablets once daily in the morning upon waking. The study includes a ScreeningBaseline period lasting up to 28 days, followed by an 8-week Double-blind Treatment period. After this, participants may choose to enter a 1-year Open-label Extension period where they will receive HBS-301. Finally, a 30-day safety follow-up will monitor participants after treatment ends. Throughout the study, participants will undergo various assessments including evaluations of daytime sleepiness using the Epworth Sleepiness Scale, cataplexy frequency, wakefulness through the Maintenance of Wakefulness Test, fatigue levels, cognitive complaints, quality of life, and work productivity. Safety will be monitored by tracking adverse events and pharmacokinetic measurements. The total study participation may last up to approximately 16 months including all phases.

A Phase 3 Efficacy and Safety Study of HBS-301 in Participants With Narcolepsy